Acetylene-gas lamp.



No. 66l,5H. Patented Nov. [3, I900. E. C. FOWLER.

AG ETYLENE ans LAMP.

(Application filed Oct. 28, 1899.) (No Model.) 3 Sheets-Sheet [0/$7555.55 [WE/76m- 1n: mums PEYERS co, Pnon Mme WASHXNGTQN. 0, cv

Nu. 66!,5: Patented Nov. l3, I900.

- E.'C. FOWLER.

ACETYLENE GAS LAMP.

3 SheetsSheet 3.

(No Model.)

-57 nae/75m- .Edward dkiawler fi J 40(- NTTEE @TATES Patent Orricn.

EDIVAR-D C. FOWLER, OF BRISTOL, CONNECTICUT, ASSIGNOR TO THE BRISTOLBRASS AND CLOCK COMPANY, OF SAME PLACE.

ACETYLENE-GAS LAM P.

SI-EGIFIGATION forming part of Letters Patent No. 661,511, datedNovember 13, 1900. Application filed October 28, 1899, .Lcrial No.735,043. (No model..-

To all whont may concern:

Be it known that I, EDWARD O. FOWLER, a citizen of the United States,residing in Bristol,in the county of Hartford and State of Connecticut,have invented certain new and useful Improvements in Acetylene-GasLamps, of which the following is a specification.

My invention relates to improvements in acetylene-gas lamps forvehicles; and the objects of my improvements are simplicity and economyin construction and convenience and efficiency of the article.

In the accompanying drawings, Figure 1 is a side elevation of my lamp,with a portion thereof near the bottom in sectional elevation. Fig. 2 isa front elevation of the same. Fig. 3 is a sectional view thereof on theline of Fig. 2, but partly in elevation. Fig. 4 is a detached rearelevation of the back reflector ring. Fig. 5 is a central horizontalsection, partly in plan view, of the back-reflectorand adjacent parts ofthe lamp. Fig. 6 is a front elevation of the back reflector. Fig. 7 is areverse plan view of the gas-chamber with the carbid holder removed, andFig. 8 is a plan view of the base of the gaschamber.

The complete lamp is substantially T- shaped in side view. A designatesa hori- Zontal cylinder, which is surmounted by a dome 9. Under the domeand near the middle of the said cylinder are the back-reflector ring 10and back reflector 11, in front of which is the bu rner-cham her, havingthe gas-burner 12, cone-reflector 13, lens 14, and lens-ring 15, whichare mainly of an ordinary construction and need not be specificallydescribed. In the rear end of the horizontal cylinder A is the upper ormain water-chamber 16, the same being provided at the top with afillingorifice and cap 17. The sides of the said horizontal cylinder areleft open just back of the back-reflector ring 10, so that the backreflector 11 may be inserted and removed through one of said openings.The said reflector is provided with a handle 18 and is of theusualconcave form in its middle portion, while its top and bottom edgesare left straight, as shown in Fig. 6, to enable the said reflector tobe guided by the ways 19 on the back of the back reflector-ring. Aspring 20 is secured by one end to the front wall of the mainwater-chamber 16 and projects into the path of the back reflector, so asto extend over and press upon the conical side of its central portion,as shown in Fig. 5, whereby the said reflector can at any time bereadliy and conveniently removed for cleaning and readily replaced.

Underneath the horizontal cylinder A is an upright orvertically-arranged portion, at the upper end of which is a ring-frame21, within which is a supplemental water-chamber 22, that communicateswith the main waterchamber 16 by means of the tube or pipe 23.Underneath the supplemental water-chrunber and concentric thereto is thegas-chamber 24, with a removable base 25. A suitable con necting pipe ortube 26 leads from the interior of the gas-chamber 24 through thewaterchamber 22 to the burner 12.

In the center of the supplemental waterchamber 22 is a verticalvalve-socket 27, Fig. 3, with the central bore or orifice through itthreaded from end to end and with a transverse opening or openings 28near the bottom of the water-chamber, that extend through to its centralbore. The tubular plug 29, the upper end of which serves as a valveseat, is exteriorly threaded and is screwed into the lower end of thevalvesocket 27, while the conical valve 30 is correspondingly threadedand is screwed into the upper end of said socket, with its upper endprojecting above the chamber 22 and provided with a resilient handle 38,(represented as removed from Fig. 3,) that extends to the outer part ofthe ringframe 21 and bears upon the holding-notches 31, formed in thesaid frame, whereby moving the said handle from notch to notch or overseveral notches will partially rotate the valve to screw it either outor in, as may be desired. A rubber or other packing 32 may be placedaround the upper end of the valve 30, as shown in Fig. 3. As shown inFig. 1, the extreme right-hand one of the notches 31 represents theclosed portion of the valve or What I may term its zero-notch. Inassembling the parts the valve is screwed in and its handle inserted andthen turned to zero. Then the tubular plug 29, the upper end of whichforms the valve-seat, is screwed in until it presses against the valve,so as to close it tightly.

In this way it is very easy to adlCC just the parts so as to insure aclosed valve when the handle is in the zero-notch. The Valve is providedwith a reduced neck 33 between its conical end and its body in orderthat the water may always have free access to the said conical end. Thetubular plug 29, like all other tubes, has a longitudinal passage 5Otherethrough.

The exterior of the gas-chamber 24, as shown, is provided with a hood34, having a skirt 35, and slightly above the bottom end 36 of saidgas-chamber there are three camledges 39, slightly separated at theirconfronting ends to form notches and all tapered at one end 37, as shownin Fig. 1. The flanged base 25 shuts over the outer sides of thecam-ledges 3H and is provided on the inner side of its flange with pinsor projections 40, (one of which is shown in section in Fig. 1,) thatpass through the spaces or notches between the cam-ledges and over thetapering ends of said ledges, whereby by turning the base to force thepins up the taper of said ledges the base may be very firmly secured tothe lower end of the gas-chamber; but instead of having the bottom ofthe base directly engage the bottom end 36 of the gaschamber I form aninner central projection or hub 41 on said base, and on the saidprojection I place a disk 42 and suitable packing 43 for pressingagainst said bot-tom end 36, whereby the disk and packing may rock andtip to adjust themselves to the said bottom end, and, further, the saiddisk and packing may be held against rotation by the friction of saidbottom end while the base is partially rotated to tighten it in place,thereby not only insuring a tight joint, but also mak- -ing a joint thatis readily detachable, al-

though it may become clogged. In other words, if the disk and bottom endof the gaschamber become stuck together by gas or corrosion the base caneasily be turned for. detaching without turning the disk, because thereis so little friction between the central projection 41 of the said baseand the said disk. The carbid-holder 45, Fig. 3, that is placed withinthe gas-chamber, is of an ordinary construction, and it is held againstrattling by means of the spring 44, while at the same time the springwill yield and permit the carbid-holder to expand. This ordinaryearbid-holder consists of the main body or holder 45, a removableflanged bottom 46, that shuts over the lower end of the carbidholdertelescopic fashion to permit expansion, and a central tube 47 to receivethe lower end of the tubular plug 29, the lower end of the said tubebeing perforated or slit, as at 48, to allow the water to flow into thecarbid-holder. The gas passes out through two or more small holes 49 inthe top of the carbid-holder and then through the tube 26 to the burner12.

It is apparent that some changes from the specific construction hereindisclosed may be made, and therefore I do not. wish to be understood aslimiting myself to the precise form of construction shown and described,but desire the liberty to make such changes in working my invention asmay fairly come within the spirit and scope of the same.

I claim as my invention- 1. An acetylene-gas lamp, substantially T-shaped in side view having in combination the horizontal cylinderprovided with the burner-chamber at one end and the main water-chamberat the other, the upright cylindrical portion containing thesupplemental water-chamber and gas-chamber, the said supplementalwater-chan'iber being arranged at the upper end of the said uprightcylindrical portion underneath the said horizontal cylinder above thesaid gas-chamber and having a communicating pipe connecting the saidwater-chambers and a valve within the said supplemental water -chamberleading from the bottom thereof to the said gas-chamber, substantiallyas described.

2. The combination of the water-chamber 22 with the valve-socketinteriorly threaded and provided with a transverse opening communicatingwith said chamber, the valve 30 screwed into one end of the said socket,the adjustable tubular plug the upper end of which serves as avalve-seat screwed into the other end of said socket and means forpartially rotating said valve and holding it in the position into whichit may be partially rotated, substantially as described.

3. The combination of the water-chamber 22 with the valve-socketinteriorly threaded and provided with an opening communicating with thesaid chamber, the valve 30 screwed into one end of the said socket, anoperating-handle projecting from the said valve, a part rigidly mountedrelatively to the said water-chamber and provided with a series ofholding-notches for the said operating-handle, and an adjustablevalve-seat for the said valve whereby the said seat may be adjusted toinsure the tight closing of the valve when the handle is placed in itszeronotch, substantially as described.

4. In an acetylene-gas lamp,the combination of the horizontal cylinderhaving the burnerchamber at one end and the main water-chamher at theother end, with the supplemental Water-chamber and gas-chamber arrangedin theform of a vertical cylindrical portion underneath the saidhorizontal cylinder, the said main and supplemental Water-chambershaving a communicating pipe,a carbid-holder within the gas-chamberhaving a water-inlet and gas-outlets, a valve within the supplementalwater-chamber for regulating the flow of water to the'carbid-holder andapipe leading from the gas-chamber to the burnerchamber of thehorizontal cylinder, substantially as described.

EDWARD O. FOWLER.

Witnesses:

JENNIE R. SMITH, GEO. O. DOHERTY.

TOO

IIO

